Perreaux R200i - Manual (Page 3)

A USB-port allows for future software-updates to be carried out. Furthermore, one trigger input
and two trigger outputs allow you to switch a complete Perreaux set in or out of stand-by. An
IEC-power connector with built-in fuse holder allows the user to use a power cord as he
chooses and pleases. Because of the fact that the product is quite small the loudspeaker
clamps are rather close to the balanced in-clamps on the one side and to the IEC-power
connector on the other. It took some rearranging of my Kimber Select cables before the WBT
cable forks could be properly connected.
Inside
What strikes you inside is the purist way in which the dual mono construction of the R200i has
been carried out; one integrates as if it were two complete mono amplifiers into one casing
here. By applying two qualitatively high-power power circuits and strictly separated alignment
and flattening of the pre- and end-amplifier currents you get maximum channel separation.
Using six very high current Toshiba MOSFETs end transistors, a capacitor battery of 40.000
microfarad per channel and a maximum power capacity of 60 Ampere channel, the Radiance
200i can keep its head cool, no matter what loudspeaker is connected.
The low internal electrical resistance in conductor-state of the Toshiba MOSFETs takes care of
a lot less heat thus creating high thermal stability. Some top-class components made by
celebrated manufacturers such as Burr Brown and Crystal are used in the pre-amplifier section.
The microprocessor-controlled volume control is constructed around a double resistor-ladder
network built up of precision resistors. A remarkable characteristic in this price class! According
to Perreaux all of these aspects should guarantee an effortless reproduction of an extremely
stable and detailed soundstage with a maximum of dynamic contrasts.
All this musical violence is continually and accurately monitored by the (again) microprocessor-
controlled security circuit. External power supply, internal power supply, clipping, over-current
protection, over-temperature protection, current temperature of the end-stage, DC offset, etc…:
all of these are closely controlled by the microprocessor. In addition to all this, the security
circuit also takes care of the ‘soft start’ when switching the R200i on and off. You can access
the most important diagnostic data via the menu and see it on the display. Via this menu you
can even program a maximum volume setting: an extra certainty for the survival of your set
during teenage-parties taking place in your absence.
By themselves, numbers prove nothing. They do however say a lot about the components used,
and the care the manufacturer put in the construction of its product. Remarkable is that every
product is delivered with a bundle of measurement reports. The things promised in the
brochure are actually proven. The following specifications are quite extraordinary in the
integrated amplifier-class: